Sail boat



FIG. 1 is a top and left side perspective view of a sail boat showing my new design;

FIG. 2 is a top and right side perspective view thereof;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a rear perspective view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a side elevational view thereof, the opposite side view being a mirror image of that shown; and

FIG. 7 is a top plan view thereof. 

The ornamental design for a sail boat, as shown and described. 